LHAZ Site Information Form lhaz_20020307.log International GPS Service 0. Form Prepared by (full name) : Wolfgang Schlueter : Klaus Roettcher : Uwe Hessels : Rudolf Stoeger Date Prepared : 2002-03-06 Report Type : UPDATE If Update: Previous Site Log : lhaz_20020306.log Modified/Added Sections : (n.n,n.n) 1. Site Identification of the GNSS Monument Site Name : Lhasa Four Character ID : LHAZ Monument Inscription : IERS DOMES Number : 21613M002 CDP Number : Monument Description : Pillar Height of the Monument : 0,8 m Monument Foundation : Roof Foundation Depth : 0,2 m Marker Description : Metal bolt Date Installed : 1999-09-22T00:00Z Geologic Characteristic : Gravel Bedrock Type : None Bedrock Condition : None Fracture Spacing : None Fault zones nearby : Distance/activity : Additional Information : An Ashtech Z18 operates : since 1999-09-22 in addition : to the Rogue SNR-8000 or : AOA SNR-8000 ACT, four : character ID LHAS. 2. Site Location Information City or Town : Lhasa State or Province : Tibet Country : China Tectonic Plate : Asian Plate Approximate Position (ITRF) X coordinate (m) : -106943.50 Y coordinate (m) : 5549296.14 Z coordinate (m) : 3139212.60 Latitude (N is +) : +293926.39 Longitude (E is +) : +0910614.48 Elevation (m,ellips.) : 3622.0 Additional Information : The system is installed in the : office of the TBSM (Tibet : Autonomous Regional Bureau : of Surveying and Mapping) in : Lhasa. The antenna is fixed : at the roof of the building. 3. GNSS Receiver Information 3.1 Receiver Type : ASHTECH Z18 Satellite System : GPS+GLONASS Serial Number : 199909108 Firmware Version : 0064 Elevation Cutoff Setting : 0 Date Installed : 1999-09-22T00:00Z Date Removed : 2001-11-28T00:00Z Temperature Stabiliz. : none Additional Information : 3.2 Receiver Type : ASHTECH Z18 Satellite System : GPS+GLONASS Serial Number : 199909108 Firmware Version : 0065 Elevation Cutoff Setting : 0 Date Installed : 2001-11-28T00:00Z Date Removed : CCYY-MM-DDThh:mmZ Temperature Stabiliz. : none Additional Information : 4. GNSS Antenna Information 4.1 Antenna Type : ASH701941.B SNOW Serial Number : 2199911007 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.1350 Marker->ARP North Ecc(m) : 0.0 Marker->ARP East Ecc(m) : 0.0 Alignment from True N : Antenna Radome Type : SNOW Radome Serial Number : Antenna Cable Type : RG214 Antenna Cable Length (m) : 30 Date Installed : 1999-09-22T00:00Z Date Removed : CCYY-MM-DDThh:mmZ Additional Information : Ashtech Choke Ring : Antenna GG, Part No. : 701941 REV B with : dome SNOW. 5. Surveyed Local Ties 5.1 Tied Marker Name : LHAS Tied Marker Usage : Tied Marker CDP Number : Tied Marker DOMES Number : 21613M001 Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : dy (m) : dz (m) : Accuracy (mm) : Survey method : Date Measured : (CCYY-MM-DD) Additional Information : GPS Permanent Tracking Station LHAS, : AOA SNR-8000 or ROGUE SNR-8000, : since 1995-05-02. 6. Frequency Standard 6.1 Standard Type : INTERNAL Input Frequency : Effective Dates : 1999-09-22 CCYY-MM-DD Notes : The Ashtech Z18 operates with : internal oscillator. 7. Collocation Information 7.1 Instrumentation Type : GPS ROGUE SNR-8000 or : AOA SNR-8000 ACT Status : PERMANENT Effective Dates : 1995-05-02 CCYY-MM-DD Notes : Four character ID LHAS 8. Meteorological Instrumentation 8.1.1 Humidity Sensor Model : MP408A Manufacturer : Rotronic, Esslingen Serial Number : Data Sampling Interval : 900 sec Accuracy (% rel h) : +/- 1.5 % rel h Aspiration : Height Diff to Ant (m) : Calibration date : Effective Dates : 1995-05-02 CCYY-MM-DD Notes : Meteorological data site LHAS 8.2.1 Pressure Sensor Model : APS Manufacturer : Roesler + Cie Serial Number : Data Sampling Interval : 900 sec Accuracy : +/- 1 hPa Height Diff to Ant (m) : prior 1997-08-27 3.0 m : after 1997-08-27 5.7 m Calibration date : Effective Dates : 1995-05-02 CCYY-MM-DD Notes : Meteorological data site LHAS 8.3.1 Temp. Sensor Model : MP408A Manufacturer : Rotronic, Esslingen Serial Number : Data Sampling Interval : 900 sec Accuracy : +/- 0.3 deg C Aspiration : Height Diff to Ant (m) : Calibration date : Effective Dates : 1995-05-02 CCYY-MM-DD Notes : Meteorological data site LHAS 8.4.1 Water Vapor Radiometer : Manufacturer : Serial Number : Distance to Antenna : (m) Height Diff to Ant (m) : Calibration date : Effective Dates : Notes : 8.5.1 Other Instrumentation : 9. Local Ongoing Conditions Possibly Affecting Computed Position 9.1.1 Radio Interferences : Observed Degradations : Effective Dates : Additional Information : 9.2.1 Multipath Sources : Effective Dates : Additional Information : 9.3.1 Signal Obstructions : Effective Dates : Additional Information : 10. Local Episodic Effects Possibly Affecting Data Quality 10.1 Date : Event : 11. On-Site, Point of Contact Agency Information Agency : Tibet Autonomous Regional : Bureau of Surveying and Mapping Preferred Abbreviation : TBSM Mailing Address : No. 179 Beijing Zhong Road : Lhasa, Tibet 850001 : China Primary Contact Contact Name : Mr. Ci Ren Tu Deng Telephone (primary) : 0086-891-68323732 Telephone (secondary) : Fax : 0086-891-6839393 E-mail : Contact Name : Mr. Chang Muduoji Telephone (primary) : 0086-891-68323732 Telephone (secondary) : Fax : 0086-891-6839393 E-mail : xzchj@public.ls.xz.cn Secondary Contact Contact Name : Mr. Wu Junli (in Beijing) Telephone (primary) : Telephone (secondary) : Fax : 0086-10-68424101 E-mail : gps@nsdi.gov.cn Additional Information : 12. Responsible Agency (if different from 11.) Agency : Bundesamt fuer Kartographie : und Geodaesie : Fundamentalstation Wettzell Preferred Abbreviation : BKG Mailing Address : Bundesamt fuer Kartographie : und Geodaesie : Fundamentalstation Wettzell : Sackenrieder Strasse 25 : D-93444 Koetzting : Germany Primary Contact Contact Name : Dr. Wolfgang Schlueter Telephone (primary) : 0049-9941-603107 Telephone (secondary) : 0049-9941-6030 Fax : 0049-9941-603222 E-mail : schlueter@wettzell.ifag.de Contact Name : Klaus Roettcher Telephone (primary) : 0049-9941-603115 Telephone (secondary) : 0049-9941-6030 Fax : 0049-9941-603222 E-mail : roettcher@wettzell.ifag.de Contact Name : Uwe Hessels Telephone (primary) : 0049-9941-603204 Telephone (secondary) : 0049-9941-6030 Fax : 0049-9941-603222 E-mail : hessels@wettzell.ifag.de Contact Name : Rudolf Stoeger Telephone (primary) : 0049-9941-603114 Telephone (secondary) : 0049-9941-6030 Fax : 0049-9941-603222 E-mail : stoeger@wettzell.ifag.de Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : 13. More Information Primary Data Center : Bundesamt fuer Kartographie und Geodaesie : Abt. Geodaesie : Referat G2 : Richard Strauss Allee 11 : D 60598 Frankfurt : Germany : http://igs.ifag.de : ftp://igs.de Secondary Data Center : URL for More Information : www.wettzell.ifag.de/GPS/lhas_de.htm Hardcopy on File Site Map : Site Diagram : Horizon Mask : Monument Description : Y Site Pictures : Y Additional Information : Antenna Graphics with Dimensions ASH701941B (Ashtech Choke Ring Antenna GG Part No. 701941 REV B with white conical Radome SNOW) ----- / + \ <-- 0.1267 L2 | + | <-- 0.1080 L1 +--------------------------------------------------+ <-- 0.1008 TCR | | | | | | | | +-+--------------------------------------------------+-+ <-- 0.0378 +-------------------+-------------+--------------------+ <-- 0.0348 BCR | | =| | +------x------+ <-- 0.0000 BPA=ARP <-- 0.3794 --> ARP: Antenna Reference Point L1 : L1 Phase Center L2 : L2 Phase Center TCR: Top of Chokering BCR: Bottom of Chokering BPA: Bottom of Preamplifier